I've tried it, and there are no words to describe how good this is! You did an amazing job.
Question: is the game still going to receive updates? If so, it would be great if you could implement these things:
1) Add a way to toggle the sounds of the fake key presses on and off (leaving just the beeps), as they might be annoying for some people.
2) Add to the controls legend on itch.io the keys that aren't listed (F11 to toggle the blurry effect of the Elektronika 60 on the Windows version and F2 to enable what I like to call "developer mode", which lets you see the game's basic appearance).
3) Add to the Hard Drop buttons the ↓ key, so the game can be fully played one-handed.
4) Add permanent high scores.
These are of course my personal suggestions that I think would make the game even better, and I do not want to put any pressure on you: if you're no longer working on this project, just know that it is already peak.
Sorry for the long yapping, and thank you again for giving us this treat. Take care!